Add interfaces for most major Blimp net components.

blimp/net/blimp_connection.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef BLIMP_NET_BLIMP_CONNECTION_H_
 #define BLIMP_NET_BLIMP_CONNECTION_H_
 
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "blimp/net/blimp_net_export.h"
 
 namespace blimp {
 
 class BlimpMessageProcessor;
 class PacketReader;
 class PacketWriter;
 
 // Encapsulates the state and logic used to exchange BlimpMessages over
 // a network connection.
 class BLIMP_NET_EXPORT BlimpConnection {
  public:
   class DisconnectObserver {
     // Called when the network connection for |this| is disconnected.
     virtual void OnDisconnected() = 0;
   };
 
   BlimpConnection(scoped_ptr<PacketReader> reader,
                   scoped_ptr<PacketWriter> writer);
 
-  ~BlimpConnection();
+  virtual ~BlimpConnection();
 
   // Lets |observer| know when the network connection is terminated.
   void AddDisconnectObserver(DisconnectObserver* observer);
 
   // Sets the processor which will take incoming messages for this connection.
   // Can be set multiple times, but previously set processors are discarded.
   void set_incoming_message_processor(
       scoped_ptr<BlimpMessageProcessor> processor);
 
   // Gets a processor for BrowserSession->BlimpConnection message routing.
   scoped_ptr<BlimpMessageProcessor> take_outgoing_message_processor() const;
 
  private:
   scoped_ptr<PacketReader> reader_;
   scoped_ptr<PacketWriter> writer_;
 
   DISALLOW_COPY_AND_ASSIGN(BlimpConnection);
 };
 
 }  // namespace blimp
 
 #endif  // BLIMP_NET_BLIMP_CONNECTION_H_